TY  - BOOK
AU  - Frisch Ragnar
TI  - Maxima and minima: theory and economic applications
U1  - 330.182 
PY  - 1966///
CY  - Dordrecht
PB  - D.Reidel Pub.
KW  - Mathematical eocnomics
N1  - Tr.from the French
ER  -